Questions tagged [uml]
Unified Modeling Language, an object-oriented modeling and specification language used in software engineering. For questions about user-mode Linux, use the [user-mode-linux] tag.
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Can the weak entities of the er diagram also be represented in the class diagram?
Is it possible to represent weak entities in the class diagram as in the er diagram?
could stereotypes be used?
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When to use specializations?
I know that specializations should only be used if the created specializations have distinctive elements such as attributes or their own associations. if these are missing how could they be modeled?
I ...
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multiple association classes on the same relation
I want to add multiple association classes on the same relation, to manage absence and group affection between a student and course, I read that an association class is a description of a relation, so ...
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How to represent relationship between system-level use case diagram and organization-level diagram
In my application, I have actors guest, user and admin, user can use basic features and admin can do things like manage users.
Beside, each user can create an organization, and inside organization ...
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Clarification Needed on Class Diagram Relationships for Employee, OrderMission, and Department
I am working on a class diagram for my internship. I have encountered a situation that I haven't seen before, and I'm not entirely comfortable with the approach I've taken. Here are the relationships ...
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It's true or False or Uml diagram? [closed]
I am realising a project only I do not understand whether the diagram is correct or not.
I've use use an generalization for merge two crud operation. I's correct?
Is the login use case correct if it ...
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Event Bubbling in Hierarchical State Machine (HSM)
Assume the following setup
We are in state A0.
What happens if the "EVENT" event is triggered?
Technically "A0" specifies how to handle the "EVENT" event. But the guard ...
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when to use association classes in a class diagram?
From what I understand, association classes are based on describing the associations between two classes with attributes, generally speaking they are used when
cardinality is many to many
in case 1,1 ...
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UML: Stereotypes of the Standard Profile
In the UML 2.5.1 specification under section 22 "Standard Profile", p. 721 of the PDF file, it says: "The Standard Profile specifies a set of predefined standard stereotypes. A ...
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Can an association of the superclass be transformed into associations for the subclasses?
specialization is totally disjointed. I know that every association a1 involving s1 and c2 must be unique for each year, i.e. there cannot be two instances of s1 associated with c2 with the same year.
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UML: What is the best type of UML diagram to show information flow through a system
What is the best type of diagram to show information flow through a system?
Many people use UML classes connected by dashed 'information flow' connectors. ("The IFD approach"). What are the ...
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association classes or classes in class diagram?
I know that in a class diagram the difference between an association class and a real class is the dependency. That is, an association class depends on the existence of the instances it connects while ...
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UML: Can classes appear with dashed borders according to strict UML definition?
Questions - About whether UML classes can appear with dashed borders according to strict UML definition:
Note: Sometimes tool choice has an influence - the tool our company uses is EA.
(1) For UML ...
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Aggregation vs Composition : Thinking at object level or class level
I am confused about how to decide aggregation vs composition for Has-A relation. Let me explain my doubt with example of BookMyShow App(BMS) which is Show booking platform and assume a Show can be ...
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UML use case initiated by an external event
I'm developing a use-case diagram for a system that uses several external APIs.
The system should identify when a customer made an EFT(Electronic Fund Transfer) payment to a merchant's bank account ...
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